media-fonts/ttf-gentium should be renamed to media-fonts/ttf-sil-gentium because of the other SIL-fonts merged into portage (ttf-sil-abyssinica, ttf-sil-arabicfonts, ttf-sil-charis, ttf-sil-doulos, ttf-sil-galatia, ttf-sil-padauk).
maybe so, but package moves are difficult to do with our system and the ttf-gentium name is referenced in several places. it's just not worth the effort. =/ thanks for your input anyways.
i've moved ttf-gentium to sil-gentium along with the other SIL fonts.